Problem adding a Credit Card outside the USA

In the "Store Issues" thread, it says "...if you live OUTSIDE the United States, and are using a Credit Card…Please go into your account and update the Credit Card Profile to add the State/Provence you live in". The trouble with that is all the options are American states... I live in the UK, what do i do? Should I just leave the state selection part blank? The problem with doing that is the thread also implies that incomplete Credit Card information causes problems...

I've searched the forums and can't find an answer. Any help would be appreciated. Thanks.

I was able to get my order and download it but it's not showing up on my credit card. Starting to get worried as I've never had a problem before and it usually shows up within minutes. Been a few days now.